Warp-drawing machine.



A. PETERSON. wARP DRAWING MACHINE.

APPLICATION FILED MAR. 9. i908. 1,191 1 12. 1 Patented Ju1y11,11916, v

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wARP DRAWING MACHINE. v

- APPLICATION FILED MAR. 9, 1908. 1 ,1 9 1. 1 1 2. Patented July 11, 1916.

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l B. A. PETERSON.

` wAnP DRAWING MACHINE.

APPLICATION FILED MAR. 9. I908.

1 ,1 91 1 1 2. y Patented J111y11,1916.

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I I I I I I III UNITED STATES EAEENE oEEIoE.

BURT A. PETERSON, OE ROOKEORD, ILLINOIS, ASSIGNOR, BYMESNE ASSIGNMENTS, rro HOWARD D. COLMAN, LUTHER L. MILLER, AND HARRY A. sEvEiaSON,v OOLPAR'INERS DOING BUSINESS AS BARBER-OOLMAN COMPANY, OE ROOKEORD, ILLINOIS.

WARE-DRAWING MACHINE.

Specification of `Letters Patent.

Patented July 11, 1916.

Application led March 9, 1908. Serial No. 419,830.

To all whom it may concern:

Be it known that I, BERT A. PETERSON, a citizen of the United States, residing at Rockford, in the county of Winnebago and State of Illinois, have invented vcertain new and useful Improvements in Warp-Drawing Machines, of which the following is a speciiication.

This invention relates to a Adrawin-g-in machine for placing the threads of a warp through the eyes of heddles, and for distributing the threaded heddles.

One of the objects of the invention is to provide meanswhereby heddles may be fed from a magazine Yinto suitable heddle frames to be subsequently used in a loom.

Another object of the invention is to provide means whereby the heddles may be threaded-Ji. e., Warp threads passed therethroughafter they are fed from the magazine and before they are fed into the heddle frames. y p

Another object of the invention is to provide means whereby heddles may be distributed to a plurality of supports or heddle frames.

Another object of the invention is to improve, 'generally upon the art of drawing warps through metal heddles.

One form of my invention is illustrated in the accompanying drawings, in which- Figure .l is a side View of a warp drawingin machine, constructed in accordance with my invention. Fig. 2 is a top plan View of the mechanism shown in Fig. 1. Fig. 3 is an enlarged sectional View on the line 3-3 of Fig. l, showing the switch and Some of its associated mechanism for distributing the heddles to the heddle receptacles. Fig. 4 is a transverse sectional view through the heddle guide bars, a heddle being shown in position. Fig. 5 is a front elevational view of the machine. Fig. 6 isean enlarged detail perspective view of one of the escapement members. Fig. 7 is a plan View of a portion of a guide bar, the switch, one of the locator fingers and one of the pusher iingers,.one locator finger being represented in position to hold a heddle for the passage of a drawing-in element therethrough. Fig. 8 is a view of the same parts shown in Fig. 7 the locator nger in this view being shown as having moved away from the heddle and the pusher finger having pushed the heddles into the gfuideslot in the switch. And Fig. 9 is a fragmental view of a heddle capable f of being acted upon' by the mechanism illustrated herein.

The particular embodiment herein shown of the invention is especially adapted for .use with loom-harness frames such as are y used to support metallic heddles in the loom. Such aloom'harness frame may be placed upon the machine herein Shown in such position'that the heddles will gravitate therefrom to an escapement, the heddles being released singlyl'and successively by the escapement for movement to one or more loom-harness frames, the warp threads being drawn through the heddles while the latter are in transit from'one loom-harness frame to another. In Fig. lis showna portion of aloom- Vharness frame or magazine M, said frame being provided `.with grooves M to contain the opposite ends of the respective heddles.

lBy reference to the gures in the drawings, it willbevobserved that the mechanism may be'conveniently supported in a frame comprising a base l., an' upstanding post 2,

and a'laterally projecting arm 3, said arm being near the upper end of the post 2. The

arm 3 is lshown vas supporting the heddleguide bars 4f` and 5 provided with T-slots La and 5, respectively, which are adapted to aline with the grooves M of a loom-harness frame placed upon the Supports 4i and 5b, so that heddles may pass from the loomharness frame tothe guide bars 4: and 5.

Supported at or adjacent to the receiving ends of the guide bars 4; and 5 is a magazine M from which the heddles may be supplied into the guide bars. This magazine may be a heddle-frame which has previouslyV been used in aV loom. The portions of the bars 4 and 5 abovetheescapement to be hereinafter Vdescribed may Valso be considered a maga-` zine. The guide barl 5 is provided with a' horizontalextension 5b, while the bar 4 is curved on the arc of a circle to form an arcuate guide for the lower ends of the heddles. The arcv is Struck from a point at the juncture of the guide 5 and the extension 5H The guide bar 4 and the guide 5 terminate in the same vertical plane, als will be apparent by reference to Fig. 1.

Adjacent to the lower or discharge end of the respective bars are oscillatory switches 6 and 7. The one designated 6 is provided with a T-groove 6an which alines with the groove 4a in the bar 4, and the groove 6a is adapted to aline with either of a' plurality of T-grooves 8 in the block 9 carried by the bracket 10 on the forward end of the base 1. Mechanism is provided for swinging the switch into registering alinement with any one of the grooves 8 (there being two shown in Fig. 3) and the mechanism is so arranged that, irrespective of which groove 8 is in alinement with the groove 6a in the switch 6 the groove 6a will always be in alinement with the groove 4a. This is due to the fact that the pivotal center of the switch 6 is approximately at the discharge end of the groove 4a. The switch 6 is supported on a pinion 11 carried by a bearing 12 in the bracket 10 and the pinion 11 is driven by a toothed segment 13 on the arm 14 of the vertical rock shaft 15. This rock shaft is supported in bearings 16 and 17 on the base 1 and the arm 3 respectively. The rock shaft 15 is provided with a crank arm 16 which engages the groove 18EL of the cam 18, carried by the rotatory shaft 19, said shaft 19 being mounted in bearings 20 and 21 in the post 2 and the bracket 10, respectively. The switch and its coperating mechanism, just described, is for the v heddle guide bar 4. A similar mechanism -is provided for the guide bar 5, the switch 7 being substantially of the same construction as the switch 6, except that it is inverted with respect to the switch 6; z'. e., it has its guide groove 7a on its under side instead of on the upper side, as has the switch 6. The switch 7 is'swingingly supported on the shaft 22, carried in the bearing 23 on the arm 3, and on the end of the shaft 22 is a pinion 24 with which meshes the teeth of the segment 25, carried by the arm 26 and supported by the rock shaft 15 from which it receives a swinging motion similar to the arm 14 and in unison therewith. Mechanism is provided for regulating the feed of the heddles as they pass from the magazine into the guide bars and this mechanism is so arranged that only one heddle will be in position at any one time to receive a warp thread.

The mechanism for governing the feed of the respective heddles is clearly illustrated in Figs. 1, 2, and 5 to 8. The entire mechanism is shown as being driven from the shaft 19 and, by reference to Fig. 1, it will be observed that a cam 27 is provided on the shaft 19 and this cam 27 has a peripheral cam groove 28 to receive the crank arm 29 of the rock shaft 30, the shaft 30 being mounted in the bearings 31 and 32. In the bearing 33von the arm3 is a rock shaft 34 whose upper end is connected to the shaft 30 so as to move in unison therewith. The shaft 30 is provided with a terminal arm and the shaft 34 is provided with a terminal arm 36, said arms 35 and 36 being connected by a link 37 (see Figs. 1 and 2). Rigid on the shaft 30 is an escapement 38 located in approximately the same plane and coperative with an escapement 39 on the shaft 34. A detail perspective view of one of these escapements is shown in Fig. 6, and the escapements are illustrated in plan view in Fig. 2.

By reference to Fig. 6 it will be seen that the escapement shown represents the one designated 38 and it comprises a U-shape bracket having diverging arms 40 and 41 one of which-is longer than-the other. The longer arm 41 is provided with an escapement plate 42 having a separating point 43, said plate being located in a plane above the plane of the plate 44carried by the arm 40.

As has been previously explained, one object of the invention is to aline the heddle so that its eye will be in position to receive a drawing-in element. In order to insure the proper position of the heddle, it is desirable that its feeding movement be arrested during the time that the drawing-in element is passed through its eye, Adjacent to lthe lower ends of the guide bars 4 and 5 are what I term pusher and locator fingers. These are arranged in pairs, so as to act upon a heddle near its respective ends and thus feed it uniformly through the upper and lower switches. rFhe locator fingers are carried by the arms 45 and 46 rigid on the shaft 30, (Fig. l), each finger (see Figs. 7 and 8) comprising a slotted body portion 47, the heddle-engaging slot 48 of which is relatively narrow and of about sufficient width to receive the round shank of a heddle 50. Both guide bars 4 and 5 are slightly curved in a horizontal plane near their discharge ends, as seen in Fig. 3, to

yface the heddle eye 51 for the reception of the drawing-in element. The curves are such that the flattened portion 49 of the heddles will at the proper point', present the eye at right angles to the path of movement of the drawing-in element. rlhe entrance to the slot 48 is flaring, in that it is provided with a relatively large entrance portion as shown at 52, the edge 53 assisting to guide Athe heddle into the slot 48. The pusher fingers 54 are carried by the'arms and 56 (Fig. 5) fixed on the shaft 30 and are in practically the same horizontal plane as their respective locator fingers 47. The inner edges 57 of the pusher fingers 54 constitute guidesy to assist in directing the heddles into the entrance 52 of the slots 48 and the outer cam edges 58 of the fingers 54 are capable ofv directing the heddles Y through they grooves 6a and 7 a in the switches 6 and 7 and into the block for the lower switch, or the block 9a for the upper switch. Upon the bracket 10 is a shoulder 10a (Figs. 1, 3 and 5) for supporting oneend of each of two loom-harness frames M or other heddle-receiving elements, the opposite ends of said receiving elements being` supported in any suitable way. blocks 9 and 9a are positioning tonguesV 59 adapted to enter recesses'in the adjacent ends of the heddle-receiving elements.' The grooves M of the loom-harness frames M are adapted to aline with the grooves 8 in the block 9 and the grooves 8a in the block 9a.

The drawing-in element herein shown consists of a needle 6 4 h aving a hook 65. rlhe needle 64 is shown as being carried by an arm 66 swingingly supported on the shaft 67 which is provided with a crank arm 68 engaging the cam groove 69 in the cam 18 so that by rotation of the shaft 19, either by the crank or by mechanical power, the needle 64 will be caused to pass through a heddle eye to place a warp thread therethrough. Y

The operation of the machine herein shown will be brieiiy described as follows: The heddles, as, for example, those designated 50, may be placed in the magazine M the heddle-receiving grooves of said magazine being in alinement with the slots 4a and 51L of theguide bars 4 and 5. The heddle-frames 61 vand 61a which are to contain the heddles after the drawing-in operation are horizontally mountedr at the right of the machine in Fig. 1 with their slots in alinement with the grooves 62'and 63 in the blocks 9 and 9a. The tongues 59 and 60 will hold the receiving elements 61 and 61a in place so that the grooves will aline with those in the blocks 9 and 9a. The heddles may be assumed to be resting upon the escapement plates 44. Upon imparting motion to the shaft 19, the cam 27 will impart a rocking motion to the shaft 30 and thus move the escapement arms 40 and 41 causingv the points 43 of the plates 42 to enter aetween the lowermost .heddle and the one just above it and as the plates continue to move, the lowermost heddle willV drop off the plates 44 and down the grooves in the bars 4 and 5. Upon the reverse movement of the oscillating shaft the heddles drop off the plates 42 and again rest upon the plates 44. As the released heddle falls from the plates 44 the end in the bar 5 strikes upon the bottom of the groove 5a and causes the other end to swing in the arc of a circle until the heddle passes the detent spring 71 bridging the groove 4a and hangs in a vertical position against the edges 57 of the pusher fingers 54 and in the path of the moving locator fingers 47. 'The locator At the ends of thev fingers 47 then move from the right to the left, as shown in Fig. 7, so that the heddle shall lie in the slots 48 and be thereby held in position for the threading. In this position the heddle lies in the horizontally curved portions of the grooves 4a 5a (Fig. 8) so that the eye will be faced with respect to the needle 64 and the movement of the parts are so timed that the heddles will be held by the fingers 47 in proper position until thev hook of the needle 64 passes through an eye and recedes therefrom. During the action ofthe needle a thread will be passedthrough the heddle eye, the thread being taken from a warp which has been fed to the needle in any suitable manner.

It will be observed that the cam 27 is a two-step cam; de., four movements, constituting two complete oscillations, will be imparted to the shaft for every complete revolution of the shaft 19 and the operation of the locator fingers just described will be accomplished by one movement of the shaft 30. Upon the next movement of the shaft 30, the locator finger 47 will move away from the heddle, whose eye has just been threaded, and the pusher fingers 54 as shown in Fig.` 8 will advance 'so that the heddle will be guided along by the cam edges 58 of the fingers 54 through the slots of the switches 6 and 7 and into the blocks 9 and 9a. During the movement of the needle, the switches 6 and 7 are being actuated so as to present the discharge ends of their grooves 6a and 7a to either one or the other of the grooves 8 and 8a, so that a heddle is fed into first the forward and then the rear groove in both blocks 9 and A9a. Of course, it is obvious that the switches may be operated to present heddles to any number of receiving elements within the limits of the machine. In order to cause the switches to present heddles to the desired number of receiving elements, it will only be necessary to change the steps of the cam 18. As. succeeding heddles are pushed into the blocks 9 and 9a, the heddles already in these blocks will be crowded into theframes 61and 61a.

I would have it understood that theinvention is not limited to the mechanisms and arrangement of parts herein shown, but that various modifications may be made within the scope ofthe appended claims.V

I claim as `my invention:

1. In a warp-drawing machine, in combination, heddle-guiding means; a member movable transversely of said guide means to 'locate the heddle for the threading operation, said member having a heddle-loeating slot therein to receive a heddle situated in said guide means, and means for threading the located heddle.

2. In a warp-drawing machine, in combination, heddle-guiding means, a member movable transversely of said guide means, said member having a heddle-receiving slot therein to hold a heddle against movement in said guide means; said slot having a fiaring entrance portion to locate the heddle, and means for threading the located and held heddle.

3. In a Warp-drawing machine; in combination, heddle-guiding means; a member movable transversely of said guide means for holding a heddle against movement in said guide means; means for threading the held heddle; and a member movable transversely of said guide means for moving the threaded heddle in said guide means, said members being arranged for synchronous movement in the same direction.

4. In a Warp-drawing machine, in combination, heddle-guiding means; a rock shaft; two arms fixed on said rock shaft; a member mounted on one of said arms for holding a heddle against movement in said guiding means; means for threading the held heddie; a member on the other arm for moving the threaded heddle in said guide means; and means for rocking said shaft to move said members transversely of said guide means.

5. In a Warp-drawing machine, in combination, heddle-guiding means; means for threading a heddle situated in said guide means; a plurality of receptacles for threaded heddles; movable heddle-guiding means for connecting the first mentioned guide means with any of said receptacles; and means for moving a threaded heddle along both of said guide means into one of said receptacles.

6. In a Warp-drawing machine; in combination; grooved heddle-guiding means; means for threading a heddle-situated in said guide means; a plurality of receptacles for threaded heddles; pivoted grooved members arranged to connect the grooves in said guide means with any of said receptacles; and means for moving a threaded heddle along the grooves in said guide means and `said pivoted members into said receptacles.

7. The combination of a magazine in which heddles may lie side by side in a horizontal position; means for releasing heddles in the magazine to gravitating movement; an angular guidefor one end of a released heddle; a guide for the other end of a released heddle, Vthe last mentioned guide being curved on the arc of a circle struck from the apex of the angle of the other guide; and means for threading the released heddles.

8. 'Ihe combination of means for removably supporting two loom harness frames, each frame being adapted to contain the opposite ends of the respective heddles; means vfor controlling the movement of heddles singly and successively from one frame to llie other; and means for threading the hed- 9. The combination of means for supporting a heddle frame on its side; means for support-ing a heddlei frame in upright position; means for moving heddles from the first mentioned frame to the other; and means for threading the heddles.

10. The combination With means for suporting a heddle frame on its side; means elow the first mentioned means for supporting a heddle frame in upright position; heddle-guiding means extending between said supports; means for controlling the movement of heddles along said guide means; and means for threading heddles.

11. The combination7 With guide means for the ends of a detached heddle, of means engaging theopposite end portions of the heddle for positioning it, and means for threading the positioned heddle.

12. The combination, With guide means for the ends of a detached heddle, of means engaging the opposite end portions of the heddle for positioning it; means for threading the positioned heddle; and means for moving the threaded heddle along said guide means. Y

13. The combination; with guide means for the ends of a detached heddle; of means engaging the opposite end portions of the heddle for positioning it, said guide means being shaped so as to face the heddle eye when the heddle is positioned; and means for threading the positioned and faced heddle.

14. The combination; with slotted guides for the ends of a detached heddle; of means for positioning the heddle in said guides, the slots in the latter being curved so as to face the heddle eye When the heddle is positioned, and means for threading the positioned and faced heddle.

- 15. The combination of tWo slot-ted heddle guides, each having a straight vertical portion, one of said guides having a horizontal portion and the other guide having a portion curved on the arc of a circle struck from the apex of the angle between the ver-.

tical and. horizontal portions of the other guide, said curved portion terminating in a horizontal portion; escapement means for supporting heddles in said vertical portions and successively releasing them; and means for threading heddles contained in said horizontal portions.

16. The combination of means for removably supporting tvvo loom harness frames, each frame being adapted to contain the opposite ends of the respective heddles, one above the other; means for guiding heddles in gravitating from the upper frame to the lovver and means to control such movement.

17. The combination of means for removably supporting a loom harness frame on its side, said frame being adapted to contain the opposite ends of the respective heddles, and said side of the frame being adapted for the discharge of heddles from the frame7 means for removably supporting a loom harness frame in upright position; means for guiding heddles to move from the rst mentioned frame to the second and means to control such movement.

18. The combination of a heddle magazine, loom-harness-rame supporting means` tWo guides for guiding the opposite ends of heddles to pass from the magazine to a Copies of this patent may be frame removably positioned on said supporting means and means to control such movement.

19. The combination of a heddle magazine; means for removably supporting a plurality of loom harness frames; tvvo guides for guiding the opposite ends of heddles to pass from the magazine to said frames; and means for distributing the heddles to the various frames.

BURT A. PETERSON.

Witnesses:

J. E. AU'rEN, A. B. ELMERS.

obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

